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IB Chemistry SL 2.4.2 Bonding Triangle Questions

Use exam questions to calculate electronegativity differences, place compounds in the bonding triangle and predict properties.

Syllabus
First assessment 2025
Course
Chemistry SL
Level
SL

Exam points

  • Use electronegativity values and their difference/average to classify the predominant bond in a binary compound.
  • Explain how electronegativity difference changes ionic or covalent character and predicts conductivity of the material.
  • Place a compound in the bonding-triangle continuum and use its position to predict a relevant material property.

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Study 2.4.2—Bonding triangle conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB Chemistry SL 2.4.2 Bonding Triangle Questions question 1

[Maximum number: 1]

Iron(II) sulfide can be produced by heating powdered iron and sulfur together.

Outline why solid iron(II) sulfide is a polar covalent compound. Use sections 9 and 17 of the data booklet.

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